EMI Yoshi's Small Wonders Notion Cube Dome Lids - are made from a durable, heavy weight plastic, and are designed to cover 604C, 604W, 604B, 604BL, and 604G Small Wonders Cubes (each sold separately); your food will be protected and easily transported. Whether used once or many times, these durable PET plastic disposable lids will keep your food safe for both displaying and serving.